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postgresql image

ref

version: '3.9'
services:
  db:
      image: postgres
      restart: always
      environment:
        POSTGRES_PASSWORD: example
    healthcheck:
      test: [“CMD-SHELL”, “pg_isready”]
      interval: 1s
      timeout: 5s
      retries: 10

start_period

Start period provides initialization time for containers that need time to bootstrap. Probe failure during that period will not be counted towards the maximum number of retries. However, if a health check succeeds during the start period, the container is considered started and all consecutive failures will be counted towards the maximum number of retries.

depends_on

Docs

startup-order

Docs